NULL pointer dereference in Libreswan
CVE-2022-23094
Libreswan 4.2 through 4.5 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted IKEv1 packet because pluto/ikev1.c wrongly expects that a state object exists. This is fixed in 4.6.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Libreswan
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- libreswan.org/security/CVE-2022-23094 (Third Party Advisory)
- github.com/libreswan/libreswan/issues/585 (Exploit, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2022/dsa-5048 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-23094?
- CVE-2022-23094 is a high-severity vulnerability in Libreswan, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-01-15.
- How severe is CVE-2022-23094?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-23094 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.